1.1% is the change from 635 to 642
Calculation steps:
[( 642 - 635 ) ÷ 635] x 100 = 1.1%
Formula
Percentage change = [(642 - 635) / 635] x 100
Subtract the new number by the original number
642 - 635 = 7
7 ÷ 635 = 0.011023622047244094
0.011023622047244094 x 100 = 1.1%